Adding a pinch of color to code fragments in a Writer document can make it easier to read. But coloring code by hand is a rather daunting proposition, especially if the document contains hundreds of lines of code. Fortunately, there is an extension for that. COOoder is a one-trick pony extension that can automatically colorize code in many programming languages.

If you use Tomboy as a drafting tool, a word count can come in handy in many situations. While Tomboy doesn't offer this functionality out of the box, you can easily add it using the Tomboy-Wordcount add-in.

The lack of a grammar checker is a pet peeve of many OpenOffice.org users. But there is a solution for those who are in desperate need of grammar checking capabilities in the productivity suite. The After the Deadline (AtD) extension adds a grammar checking feature based on the open source language checking server developed and maintained by Automattic.